Hi,
We are currently developing a mobile application that allows users to form teams and play games on different game platforms including xbox. Being able to send friend requests without having to ask our users to navigate to xbox.com and sign in and add friend can save a lot of effort from the users. So, I am wondering if there exists such a RESTful api that a mobile application can send request to in order to perform a send friend request action for xbox users using gamertags?